Home/CVE/WebDAV implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to XXE injection.
CVE

CVE-2020-24379

WebDAV implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to XXE injection.

WebDAV implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to XXE injection.

CRITICAL · CVSS 9.8 EPSS 0.01106
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-611Improper Restriction of XML External Entity Reference
▤

Affected Products & Versions

3
yaws>= 1.81 and <= 2.0.7
canonical ubuntu linuxall versions
debian linuxall versions
⚠

Public Exploits & PoCs

2
pocgithub.com · poc-yaws-dav-xxegithub.com
pocpacketstormsecurity.com · Yaws-2.0.7-XML-Injection-Command-Injection.htmlpacketstormsecurity.com
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Sep 2020 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
⚑

Vendor Advisories

1
usnUSN-4569-1
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/erlyaws/yaws/commits/masterPatchThird Party Advisory
https://lists.debian.org/debian-lts-announce/2020/09/msg00022.htmlMailing ListThird Party Advisory
https://usn.ubuntu.com/4569-1/Third Party Advisory
https://vuln.be/post/yaws-xxe-and-shell-injections/Broken LinkThird Party Advisory
https://www.debian.org/security/2020/dsa-4773Third Party Advisory
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